Imouto Paradise!

The story follows teacher and veteran solo camper Kensuke, who forms a camping group with four girls.

In a world bursting at the seams with moe monsters and humanoids of the horned sort, which brave heroes will take it upon themselves to review the beastly babes of the red-light district? Can only one be crowned the ultimate title of best girl? Behold the most tantalizing of trials.

Male student Souta Tsukishima begins working at his family's public bathhouse as a back washer. While concealing her true identity, Souta's classmate Aoi Yuzuki visits the bathhouse. A relationship between the two begins to develop when Souta washes Aoi's back.

One day, humanity was invaded by another world. Having experienced that battle, known as Other World War I, humanity moved to marine floats, built for emergency evacuation purposes, as soon as Other World War II began. It's around that time that Kizuna Hida is summoned by his elder sister and visits the Strategic Defense Academy Ataraxia where he meets Aine Chidorigafuchi, a girl who uses Heart Hybrid Gear Zeros to fight the otherworldly enemies. He has a tough time dealing with her, but when her Gear runs out of energy, the only way to get it back in action is to do something lewd to her!